The route is on Cogmans Buttress in Montagu, really nice route, bolted well, getting down requires one 60 meter rope, you can pull through the grade 21 crux very easily (see pic, the crux starts at the big white grip) - which makes the route go at about grade 18.

It's one of my favourite Stu Brown routes

I know I don't need to remind Snort, but don't forget to tie knots in the end of the rope whilst rapping off!